Journal ArticleDOI
Protein utilization in ruminants. i. blood urea nitrogen as affected by protein intake.
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This article is published in Journal of Nutrition.The article was published on 1965-07-01. It has received 222 citations till now. The article focuses on the topics: Blood urea nitrogen & Blood chemistry.read more
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Journal ArticleDOI
Nutritional Factors Influencing the Nitrogen Composition of Bovine Milk: A Review
E.J. DePeters,John P. Cant +1 more
Journal ArticleDOI
Metabolism of urea in sheep.
M. R. Cocimano,R. A. Leng +1 more
TL;DR: Urea excretion rate, urea clearance by the kidney, urine flow rate and the ratio of the concentration of urea in urine to that in plasma (urea U:P ratio) were also examined.
Journal ArticleDOI
Effects of treating rice straw with urea or urea and calcium hydroxide upon intake, digestibility, rumen fermentation and milk yield of dairy cows
TL;DR: In this paper, three Holstein crossbred dairy cows were randomly allocated to 3 treatments of rice straw (T1 = untreated rice straw; T2 = 5.5% urea-treated rice straw and 2.2% calcium hydroxide treated rice straw) according to a 3 × 3 Latin square design.
Journal ArticleDOI
Milk urea nitrogen target concentrations for lactating dairy cows fed according to National Research Council recommendations.
TL;DR: A mechanistic model to predict milk urea N concentrations was developed using raw data from 3 studies and was evaluated with 18 independent studies and established target concentrations that were sensitive to changes in milk production and amount of N intake and relatively insensitive to body weight, parity, and grouping strategy.
Journal ArticleDOI
Effects of hard fats on in vitro and in vivo rumen fermentation, milk production and reproduction in dairy cows.
TL;DR: The inclusion of prilled fat at 2% of DM in dairy cattle rations had slight effects on rumen fermentation, variable effects on milk yield and composition, and beneficial effects on conception rate.